It comes out - CompMag AR-15 5.56x45 10-Round Compliant Locked Magazine

Hi, as most of you know here in California we need to ether have a featureless ar-15 or a locked mag Ar-15. I bought the compMag because I wanted to keep all of my legal features on my AR-15. I followed the instructions, they ask that we do not do more than a certain amount of turns on the screw. I did the max amount of turns on that screw. I was still able to pull the darn Magazine off, even with the little pin. If I as someone who can't even work out can take the mag out imagine what a cop who works out will do to me or anyone who has this mag if they take it out with their beast strength. I do not recommend this. The only way that I see this working would be if some how a metal plate or something that wont break easily is inserted between the top of the mag and the lower along with a screw and pin that can't come off unless the upper and lower are taken apart.